2.2.7.54 MILCMD_TARGET_SETCLEARCOLOR
The MILCMD_TARGET_SETCLEARCOLOR packet sets the background color of this rendering target. The composition engine fills the target with this color before composing the visual tree.
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messageSize |
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controlCode |
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targetResource |
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clearColor (16 bytes) |
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messageSize (4 bytes): A 32-bit unsigned integer. The size of this message in bytes. The value of this field MUST be set to 0x0000001C.
controlCode (4 bytes): A 32-bit unsigned integer containing the control code for this message. The value of this field MUST be equal to 0x00000046.
targetResource (4 bytes): A 32-bit unsigned integer. The value of this field MUST be set to a valid resource handle referencing a resource of type TYPE_HWNDRENDERTARGET, TYPE_DESKTOPRENDERTARGET or TYPE_METABITMAPRENDERTARGET. This handle identifies the resource that is the target for this message.
clearColor (16 bytes): A MilColor structure. The background color that MUST be used to clear the render target at the beginning of a composition pass.