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452 lines
19 KiB
Markdown
452 lines
19 KiB
Markdown
# PowerToy DLL Project For Visual Studio 2019
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## Installation
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- Put the `ModuleTemplate.zip` file inside the `%USERPROFILE%\Documents\Visual Studio 2019\Templates\ProjectTemplates\` folder, which is the default *User project templates location*. You can change that location via `Tools > Options > Projects and Solutions`.
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- The template will be available in Visual Studio, when adding a new project, under the `Visual C++` tab.
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## Contributing
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If you'd like to work on a PowerToy template, make required modifications to `\tools\project_template\ModuleTemplate.vcxproj` and then use the dedicated solution `PowerToyTemplate.sln` to export it as a template. Note that `ModuleTemplate.vcxproj` is actually a project template, therefore uncompilable, so we also have a dedicated `ModuleTemplateCompileTest.vcxproj` project referenced from the `PowerToys.sln` to help keeping the template sources up to date and verify it compiles correctly.
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## Create a new PowerToy Module
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- Add the new PowerToy project to the `src\modules\` folder for all the relative paths to work.
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- For the module interface implementation take a look at [the interface](/src/modules/interface) and
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[the example PowerToy implementation](/src/modules/example_powertoy/dllmain.cpp)
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- Each PowerToy is built as a DLL and in order to be loaded at run-time, the PowerToy's DLL name needs to be added to the `known_dlls` map in [src/runner/main.cpp](/src/runner/main.cpp).
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## DPI Awareness
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All PowerToy modules need to be DPI aware and calculate dimensions and positions of the UI elements using the Windows API for DPI awareness.
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The `/src/common` library has some helpers that you can use and extend:
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- [`dpi_aware.h`](/src/common/dpi_aware.h), [`dpi_aware.cpp`](/src/common/dpi_aware.cpp)
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- [`monitors.h`](/src/common/monitors.h), [`monitors.cpp`](/src/common/monitors.cpp)
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## PowerToy settings
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### Settings architecture overview
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PowerToys provides a settings infrastructure to add a settings page for new modules. The PowerToys Settings application is accessed from the PowerToys tray icon, it provides a global settings page and a dedicated settings page for each module.
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The PowerToys settings API provides a way to define the required information and controls for the module's settings page and methods to read and persist the settings values. A module may need a more complex way to configure the user's preferences, in that case it can provide its own custom settings editor that can be invoked from the module's settings page through a dedicated button.
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The settings specification can be read at [doc/specs/PowerToys-settings.md](/doc/specs/PowerToys-settings.md).
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A PowerToy can provide this general information about itself:
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- **[name](#name)**: The name of the PowerToy.
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- **[description](#description)**: A text describing the PowerToy.
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- **[icon_key](#icon_key)**: The identifier of the PowerToy icon in the [`settings-web` project](/src/settings-web#updating-the-icons).
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- **[overview_link](#overview_link)**: A link to an extended overview of the PowerToy.
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- **[video_link](#video_link)**: A link to a video showcasing the PowerToy.
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A PowerToy can define settings of the following types:
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- **[bool_toggle](#bool_toggle)**: A boolean property, edited with a Toggle control.
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- **[int_spinner](#int_spinner)**: An integer property, edited with a Spinner control.
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- **[string](#string)**: A string property, edited with a TextBox control.
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- **[color_picker](#color_picker)**: A color property, edited with a ColorPicker control.
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- **[custom_action](#custom_action)**: A custom action property, invoked from the settings by a Button control.
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Here's an example of what the settings look like in the Settings screen:
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### How to add your module's settings page
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The PowerToy can set its settings information and controls by overriding the [PowerToy's Interface `get_config` method](/src/modules/interface/README.md#get_config) and returning a serialized [`PowerToysSettings::Settings`](/src/common/settings_object.h) object that's been filled with the required informations and controls.
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The PowerToy can receive the new values by overriding the [PowerToy's Interface `set_config` method](/src/modules/interface/README.md#set_config), parsing the serialized [`PowerToysSettings::PowerToyValues`](/src/common/settings_object.h) object and applying the new settings.
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Here's an example from [the example PowerToy implementation](/src/modules/example_powertoy/dllmain.cpp):
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```cpp
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// Return JSON with the configuration options.
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virtual bool get_config(wchar_t* buffer, int* buffer_size) override {
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HINSTANCE hinstance = reinterpret_cast<HINSTANCE>(&__ImageBase);
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// Create a Settings object.
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PowerToysSettings::Settings settings(hinstance, get_name());
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settings.set_description(L"Serves as an example powertoy, with example settings.");
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// Show an overview link in the Settings page
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settings.set_overview_link(L"https://github.com/microsoft/PowerToys");
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// Show a video link in the Settings page.
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settings.set_video_link(L"https://www.youtube.com/watch?v=d3LHo2yXKoY&t=21462");
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// Add a bool property with a toggle editor.
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settings.add_bool_toogle(
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L"test_bool_toggle", // property name.
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L"This is what a BoolToggle property looks like", // description or resource id of the localized string.
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g_settings.test_bool_prop // property value.
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);
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// Add an integer property with a spinner editor.
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settings.add_int_spinner(
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L"test_int_spinner", // property name
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L"This is what a IntSpinner property looks like", // description or resource id of the localized string.
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g_settings.test_int_prop, // property value.
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0, // min value.
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100, // max value.
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10 // incremental step.
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);
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// Add a string property with a textbox editor.
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settings.add_string(
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L"test_string_text", // property name.
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L"This is what a String property looks like", // description or resource id of the localized string.
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g_settings.test_string_prop // property value.
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);
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// Add a string property with a color picker editor.
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settings.add_color_picker(
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L"test_color_picker", // property name.
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L"This is what a ColorPicker property looks like", // description or resource id of the localized string.
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g_settings.test_color_prop // property value.
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);
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// Add a custom action property. When using this settings type, the "PowertoyModuleIface::call_custom_action()"
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// method should be overriden as well.
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settings.add_custom_action(
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L"test_custom_action", // action name.
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L"This is what a CustomAction property looks like", // label above the field.
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L"Call a custom action", // button text.
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L"Press the button to call a custom action in the Example PowerToy" // display values / extended info.
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);
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return settings.serialize_to_buffer(buffer, buffer_size);
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}
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// Called by the runner to pass the updated settings values as a serialized JSON.
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virtual void set_config(const wchar_t* config) override {
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try {
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// Parse the input JSON string.
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PowerToysSettings::PowerToyValues values =
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PowerToysSettings::PowerToyValues::from_json_string(config);
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// Update the bool property.
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if (values.is_bool_value(L"test_bool_toggle")) {
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g_settings.test_bool_prop = values.get_bool_value(L"test_bool_toggle");
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}
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// Update the int property.
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if (values.is_int_value(L"test_int_spinner")) {
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g_settings.test_int_prop = values.get_int_value(L"test_int_spinner");
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}
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// Update the string property.
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if (values.is_string_value(L"test_string_text")) {
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g_settings.test_string_prop = values.get_string_value(L"test_string_text");
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}
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// Update the color property.
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if (values.is_string_value(L"test_color_picker")) {
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g_settings.test_color_prop = values.get_string_value(L"test_color_picker");
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}
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// If you don't need to do any custom processing of the settings, proceed
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// to persists the values calling:
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values.save_to_settings_file();
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// Otherwise call a custom function to process the settings before saving them to disk:
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// save_settings();
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}
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catch (std::exception ex) {
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// Improper JSON.
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}
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}
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```
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### Settings Informations
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The PowerToys settings object supports adding additional information to a PowerToys Settings description:
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#### name
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The name of the PowerToy. Its a required information that's applied in the settings object constructor:
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```cpp
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PowerToysSettings::Settings settings(hinstance, get_name());
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```
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#### description
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A short description of the PowerToy.
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```cpp
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settings.set_description(L"Serves as an example powertoy, with example settings.");
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```
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or
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```cpp
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settings.set_description(description_resource_id);
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```
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where `description_resource_id` is the UINT index of a resouce string in the project .rc file.
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#### icon_key
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The identifier of the PowerToy icon in the [`settings-web` project](/src/settings-web#updating-the-icons).
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By default, a `CircleRing` icon from *FabricUI* is shown for the PowerToy if no icon is specified.
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```cpp
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settings.set_icon_key(L"pt-shortcut-guide");
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```
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#### overview_link
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A link to an extended overview of the PowerToy.
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```cpp
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settings.set_overview_link(L"https://github.com/microsoft/PowerToys");
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```
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#### video_link
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A link to a video showcasing the PowerToy.
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```cpp
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settings.set_video_link(L"https://www.youtube.com/watch?v=d3LHo2yXKoY&t=21462");
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```
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### Setting Controls
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#### bool_toggle
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A boolean property, edited with a Toggle control.
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It can be added to a `Settings` object by calling `add_bool_toogle`.
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```cpp
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// Add a bool property with a toggle editor.
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settings.add_bool_toogle(
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L"test_bool_toggle", // property name.
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L"This is what a BoolToggle property looks like", // description or resource id of the localized string.
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g_settings.test_bool_prop // property value.
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);
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```
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It can be read from a `PowerToyValues` object by calling `get_bool_value`.
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```cpp
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// Update the bool property.
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if (values.is_bool_value(L"test_bool_toggle")) {
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g_settings.test_bool_prop = values.get_bool_value(L"test_bool_toggle");
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}
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```
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#### int_spinner
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An integer property, edited with a Spinner control.
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It can be added to a `Settings` object by calling `add_int_spinner`.
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```cpp
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// Add an integer property with a spinner editor.
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settings.add_int_spinner(
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L"test_int_spinner", // property name
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L"This is what a IntSpinner property looks like", // description or resource id of the localized string.
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g_settings.test_int_prop, // property value.
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0, // min value.
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100, // max value.
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10 // incremental step.
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);
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```
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It can be read from a `PowerToyValues` object by calling `get_int_value`.
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```cpp
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// Update the int property.
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if (values.is_int_value(L"test_int_spinner")) {
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g_settings.test_int_prop = values.get_int_value(L"test_int_spinner");
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}
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```
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#### string
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A string property, edited with a TextBox control.
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It can be added to a `Settings` object by calling `add_string`.
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```cpp
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// Add a string property with a textbox editor.
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settings.add_string(
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L"test_string_text", // property name.
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L"This is what a String property looks like", // description or resource id of the localized string.
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g_settings.test_string_prop // property value.
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);
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```
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It can be read from a `PowerToyValues` object by calling `get_string_value`.
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```cpp
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// Update the string property.
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if (values.is_string_value(L"test_string_text")) {
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g_settings.test_string_prop = values.get_string_value(L"test_string_text");
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}
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```
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#### color_picker
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A color property, edited with a ColorPicker control. Its value is a string with the `'#RRGGBB'` format, with two hexadecimal digits for each color component.
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It can be added to a `Settings` object by calling `add_color_picker`.
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```cpp
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// Add a string property with a color picker editor.
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settings.add_color_picker(
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L"test_color_picker", // property name.
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L"This is what a ColorPicker property looks like", // description or resource id of the localized string.
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g_settings.test_color_prop // property value.
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);
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```
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The `'#RRGGBB'`-format string can be read from a `PowerToyValues` object by calling `get_string_value`.
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```cpp
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// Update the color property.
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if (values.is_string_value(L"test_color_picker")) {
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g_settings.test_color_prop = values.get_string_value(L"test_color_picker");
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}
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```
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#### custom_action
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A custom action property, invoked from the settings by a Button control. This can be used to spawn a custom editor by the PowerToy.
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It can be added to a `Settings` object by calling `add_custom_action`.
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```cpp
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// Add a custom action property. When using this settings type, the "PowertoyModuleIface::call_custom_action()"
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// method should be overriden as well.
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settings.add_custom_action(
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L"test_custom_action", // action name.
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L"This is what a CustomAction property looks like", // label above the field: a string literal or a resource id
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L"Call a custom action", // button text: a string literal or a resource id
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L"Press the button to call a custom action in the Example PowerToy" // display values / extended info: a string literal or a resource id
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);
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```
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When the custom action button is pressed, the PowerToy's `call_custom_action()` is called with a serialized [`PowerToysSettings::CustomActionObject`](/src/common/settings_object.h) object.
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```cpp
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// Signal from the Settings editor to call a custom action.
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// This can be used to spawn more complex editors.
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virtual void call_custom_action(const wchar_t* action) override {
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static UINT custom_action_num_calls = 0;
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try {
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// Parse the action values, including name.
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PowerToysSettings::CustomActionObject action_object =
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PowerToysSettings::CustomActionObject::from_json_string(action);
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if (action_object.get_name() == L"test_custom_action") {
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// Custom action code to increase and show a counter.
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++custom_action_num_calls;
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std::wstring msg(L"I have been called ");
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msg += std::to_wstring(custom_action_num_calls);
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msg += L" time(s).";
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MessageBox(NULL, msg.c_str(), L"Custom action call.", MB_OK | MB_TOPMOST);
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}
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}
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catch (std::exception ex) {
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// Improper JSON.
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}
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}
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```
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### Settings Persistence
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By default, the PowerToys settings are persisted in the User's `%LocalAppData%\Microsoft\PowerToys` path.
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Each PowerToy has its own folder for saving the persisted settings data.
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Loading and saving the settings in the default location can be achieved through the use of a [`PowerToysSettings::PowerToyValues`](/src/common/settings_object.h) object.
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#### Loading settings
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The PowerToy can load the saved `PowerToyValues` object through the use of the `load_from_settings_file` method.
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Here's an example from [the example PowerToy implementation](/src/modules/example_powertoy/dllmain.cpp):
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```cpp
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// Load the settings file.
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void ExamplePowertoy::init_settings() {
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try {
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// Load and parse the settings file for this PowerToy.
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PowerToysSettings::PowerToyValues settings =
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PowerToysSettings::PowerToyValues::load_from_settings_file(get_name());
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// Load the bool property.
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if (settings.is_bool_value(L"test_bool_toggle")) {
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g_settings.test_bool_prop = settings.get_bool_value(L"test_bool_toggle");
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}
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// Load the int property.
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if (settings.is_int_value(L"test_int_spinner")) {
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g_settings.test_int_prop = settings.get_int_value(L"test_int_spinner");
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}
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// Load the string property.
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if (settings.is_string_value(L"test_string_text")) {
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g_settings.test_string_prop = settings.get_string_value(L"test_string_text");
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}
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// Load the color property.
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if (settings.is_string_value(L"test_color_picker")) {
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g_settings.test_color_prop = settings.get_string_value(L"test_color_picker");
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}
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}
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catch (std::exception ex) {
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// Error while loading from the settings file. Let default values stay as they are.
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}
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}
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```
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#### Saving settings
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The PowerToy can save the `PowerToyValues` object received in `set_config` through the use of the `save_to_settings_file` method.
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Here's an example from [the example PowerToy implementation](/src/modules/example_powertoy/dllmain.cpp):
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```cpp
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// Called by the runner to pass the updated settings values as a serialized JSON.
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virtual void set_config(const wchar_t* config) override {
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try {
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// Parse the input JSON string.
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PowerToysSettings::PowerToyValues values =
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PowerToysSettings::PowerToyValues::from_json_string(config);
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...
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values.save_to_settings_file();
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}
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catch (std::exception ex) {
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// Improper JSON.
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}
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}
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```
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Alternatively, the `PowerToyValues` object can be built manually and then saved if more complex logic is needed:
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```cpp
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// This method of saving the module settings is only required if you need to do any
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// custom processing of the settings before saving them to disk.
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void ExamplePowertoy::save_settings() {
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try {
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// Create a PowerToyValues object for this PowerToy
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PowerToysSettings::PowerToyValues values(get_name());
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// Save the bool property.
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values.add_property(
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L"test_bool_toggle", // property name
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g_settings.test_bool_prop // property value
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);
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// Save the int property.
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values.add_property(
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L"test_int_spinner", // property name
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g_settings.test_int_prop // property value
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);
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// Save the string property.
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values.add_property(
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L"test_string_text", // property name
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g_settings.test_string_prop // property value
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);
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// Save the color property.
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values.add_property(
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L"test_color_picker", // property name
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g_settings.test_color_prop // property value
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);
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// Save the PowerToyValues JSON to the power toy settings file.
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values.save_to_settings_file();
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}
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catch (std::exception ex) {
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// Couldn't save the settings.
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}
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}
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```
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## Add a new PowerToy to the Installer
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In the `installer` folder, open the `PowerToysSetup.sln` solution.
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Under the `PowerToysSetup` project, edit `Product.wxs`.
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You will need to add a component for your module DLL. Search for `Module_ShortcutGuide` to see where to add the component declaration and where to reference that declaration so the DLL is added to the installer.
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Each component requires a newly generated GUID (you can use the Visual Studio integrated tool to generate one).
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Repeat the process for each extra file your PowerToy module requires.
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If your PowerToy comes with a subfolder containing for example images, follow the example of the `PowerToysSvgs` component.
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