DDraw and Audio
This code sample is named Donuts2. It is a simple game that demonstrates how to combine DirectDraw and Waveform Audio. Although it demonstrates other DirectX components, it is primarily intended to show how to animate multiple sprites.
Feature Area
Relevant APIs
- BITMAP structure
- CreateCompatibleDC function
- DDSURFACEDESC structure
- GetObject function
- IDirectDraw::CreateSurface function
- IDirectDrawPalette function
- IDirectDrawSurface::GetSurfaceDesc function
- IDirectDrawSurface5 interface
- PAINTSTRUCT structure
- SelectObject function
Usage
To run the code sample
Navigate to the solution file (*.sln), and double-click it. By default, the solution file is copied to the following folder:
C:\Program Files\Windows CE Tools\wce500\Windows Mobile 5.0 Pocket PC SDK\Samples\CPP\Win32\Directx\Ddraw\Donuts2\``Donuts2.slnMicrosoft Visual Studio 2005 launches and loads the solution.
Build the solution (Ctrl+Shift+B).
Deploy the solution (F5).
Using the application
- Input is from the keyboard. No other input device is supported.
- The commands are listed on the opening screen. All numbers must be entered from the numeric keypad.
Button Commands
| Button | Action |
|---|---|
| Left | Turn left |
| Right | Turn right |
| Up | Accelerate forward |
| Down | Accelerate backward |
| Application Button 1 | Stop |
| Application Button 2 | Shield |
| Action Fire | Start game |
| Talk button | Turn audio on/off |
| End button | Quit |
| Volume Up | Toggle trailing after-image effect on/off |
| Volume Down | Toggle frame-rate display on/off |
Command-line switches
| Switch | Description |
|---|---|
| e | Use software emulation, not hardware acceleration |
| t | Test mode, no input required |
| x | Stress mode, never stop if you can help it |
| s | Turn sound off/on |
Remarks
It is assumed that your mobile device supports DirectDraw.
This code sample requires less than 1 MB of video RAM.
Requirements
Pocket PC SDK: Windows Mobile 5.0 Pocket PC SDK.
Smartphone SDK: Windows Mobile 5.0 Smartphone SDK.
Development Environment: Visual Studio 2005.
ActiveSync: Version 4.0.
See Also
Code Samples | DDraw and Animation | DDraw and Bitmaps | DDraw Initialization | DDraw Off-Screen Surfaces | Storing Bitmaps in Display Memory
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