?? enumobjects.htm
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<td width="100%" height="16">EnumObjects</td>
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<td width="102%" colspan="2">VB聲明</td>
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<td width="102%" colspan="2">Declare Function EnumObjects Lib "gdi32" Alias
"EnumObjects" (ByVal hDC As Long, ByVal n As Long, ByVal lpGOBJEnumProc As Long,
lpVoid As Any) As Long</td>
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<td width="102%" colspan="2">說明</td>
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<td width="102%" colspan="2">枚舉可隨同指定設備場景使用的畫筆和刷子</td>
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<td width="102%" colspan="2">返回值</td>
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<td width="102%" colspan="2">Long，如函數要枚舉的對象太多，就返回-1。否則由用戶自己定義</td>
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<td width="102%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="77%">類型及說明</td>
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<td width="25%">hDC</td>
<td width="77%">Long，設備場景的句柄</td>
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<td width="25%">n</td>
<td width="77%">Long，欲枚舉的對象的類型。請查找帶OBJ_前綴的常數，這樣可得到一個對象列表。win32手冊建議只使用OBJ_PEN和OBJ_BRUSH兩個常數</td>
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<td width="25%">lpGOBJEnumProc</td>
<td width="77%">Long，指向為每個GDI對象調用的指針</td>
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<td width="25%">lpVoid</td>
<td width="77%">枚舉過程中傳遞給回調函數的值</td>
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