2.2.7.49 MILCMD_WINDOWNODE_PROTECTCONTENT
The MILCMD_WINDOWNODE_PROTECTCONTENT packet instructs the composition engine to replace the contents of this window node with a black rectangle when rendering for the purpose of fulfilling a capture or read-back request.
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messageSize |
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controlCode |
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targetResource |
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Protected |
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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 0x0000003F.
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_WINDOWNODE. This handle identifies the resource that is the target for this message.
Protected (4 bytes): A 32-bit integer Boolean value. If true and if ScreenReadback rendering parameter is set for this window node and if rendering the window node to fulfill a capture or read-back request, the compositor MUST replace the contents of this window node with a black rectangle matching the size of the bounding box of the window node contents.