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Push region of interest on the stack.
Source position: gpm.pp line 193
function gpm_pushroi( |
x1: LongInt; |
y1: LongInt; |
x2: LongInt; |
y2: LongInt; |
mask: LongInt; |
fun: TGpmHandler; |
xtradata: pointer |
):Pgpm_roi; |
Gpm_PushRoi puts a new region of interest on the stack. The region of interest is defined by a rectangle described by the corners (X1,Y1) and (X2,Y2).
The mask describes which events the handler {fun} will handle; ExtraData will be put in the xtradata field of the {TGPM_Roi} record passed to the fun handler.
None.
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Raise region of interest in the stack. |
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Pop region of interest from the stack. |
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Lower a region of interest in the stack. |