2.2.7.22 MILCMD_VISUAL_SETCLIP
The MILCMD_VISUAL_SETCLIP packet specifies the area to which the rendering of a visual will be restricted.
|
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
messageSize |
|||||||||||||||||||||||||||||||
|
controlCode |
|||||||||||||||||||||||||||||||
|
targetResource |
|||||||||||||||||||||||||||||||
|
hClip |
|||||||||||||||||||||||||||||||
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 0x0000001E.
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_VISUAL or TYPE_WINDOWNODE. This handle identifies the resource that is the target for this message.
hClip (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_RECTANGLEGEOMETRY, TYPE_COMBINEDGEOMETRY, or TYPE_PATHGEOMETRY. This resource represents the geometry that will clip the specified visual. If the TYPE_VISUAL or TYPE_WINDOWNODE resource already has a TYPE_RECTANGLEGEOMETRY, TYPE_COMBINEDGEOMETRY, or TYPE_PATHGEOMETRY resource set as a clip, the reference to the old clip MUST be removed and replaced with the new TYPE_RECTANGLEGEOMETRY, TYPE_COMBINEDGEOMETRY, or TYPE_PATHGEOMETRY resource referenced by the message. If the value of the hClip field is NULL, then the existing reference to a TYPE_RECTANGLEGEOMETRY, TYPE_COMBINEDGEOMETRY, or TYPE_PATHGEOMETRY clip resource MUST be removed. In this case, the TYPE_VISUAL or TYPE_WINDOWNODE resource targeted by the message MUST be rendered with no clip.