2.2.7.53 MILCMD_TARGET_SETROOT
The MILCMD_TARGET_SETROOT packet sets the root of the visual tree that draws into this render target.
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messageSize |
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controlCode |
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targetResource |
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hRoot |
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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 0x00000010.
controlCode (4 bytes): A 32-bit unsigned integer containing the control code for this message. The value of this field MUST be equal to 0x00000045.
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.
hRoot (4 bytes): A 32-bit unsigned integer. The value of this field MUST either be set to zero or set to a valid resource handle referencing a resource of type TYPE_VISUAL or TYPE_WINDOWNODE. This visual will be the new root of the visual tree that draws into this render target.