PtVisible

PtVisible

VB聲明

Declare Function PtVisible Lib "gdi32" Alias "PtVisible" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long

說(shuō)明

確定指定點(diǎn)是否可見(jiàn)（即，點(diǎn)是否在設(shè)備場(chǎng)景剪裁區(qū)內(nèi)）

返回值

Long，若點(diǎn)在指定設(shè)備場(chǎng)景剪裁區(qū)內(nèi)為非零值，否則為0

參數(shù)表

參數(shù)

類型及說(shuō)明

hdc

Long，設(shè)備場(chǎng)景句柄

x

Long，要檢查的點(diǎn)的x,y坐標(biāo)

y

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