CButtonST类的设置按钮背景是透明色函数//怎么做到的?
voidCButtonST::DrawTransparent(BOOLbRepaint){m_bDrawTransparent=TRUE;//Restoreoldbitm...
void CButtonST::DrawTransparent(BOOL bRepaint)
{
m_bDrawTransparent = TRUE;
// Restore old bitmap (if any)
if (m_dcBk.m_hDC != NULL && m_pbmpOldBk != NULL)
{
m_dcBk.SelectObject(m_pbmpOldBk);
} // if
m_bmpBk.DeleteObject();
m_dcBk.DeleteDC();
// Repaint the button
if (bRepaint) Invalidate();
} // End of DrawTransparent 展开
{
m_bDrawTransparent = TRUE;
// Restore old bitmap (if any)
if (m_dcBk.m_hDC != NULL && m_pbmpOldBk != NULL)
{
m_dcBk.SelectObject(m_pbmpOldBk);
} // if
m_bmpBk.DeleteObject();
m_dcBk.DeleteDC();
// Repaint the button
if (bRepaint) Invalidate();
} // End of DrawTransparent 展开
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