在TOOLBAR中设置 NMTBCUSTOMDRAW结构体,以改变文本的颜色, 我已经成功改变TOOLBAR文本颜色, 但是 如何设置高亮文本 那就一头雾水 了
void MyToolBar::OnNMCustomdraw(NMHDR *pNMHDR, LRESULT *pResult) //on draw item
{
NMTBCUSTOMDRAW* pLVCD = reinterpret_cast<NMTBCUSTOMDRAW*> (pNMHDR);
DWORD DW = *pResult;
*pResult = 0; // First thing - check the draw stage(阶段). If it's the control's prepaint(preprint)
COLORREF crText;
COLORREF crHighText;
if ( CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage ) //before a painting cycle begin
{
*pResult = CDRF_NOTIFYITEMDRAW; //自己完成绘制
}
else if ( CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage ) //before an item is draw
{
// This is the prepaint stage for an item. Here's where we set the
// item's text color. Our return value will tell Windows to draw the
// item itself, but it will use the new color we set here.
// We'll cycle the colors through red, green, and light blue.
crText = RGB(255,0,0);
crHighText = RGB(0, 255, 0);
pLVCD->clrText = crText; // Tell Windows to paint the control itself.
pLVCD->clrTextHighlight = crHighText;
*pResult = CDRF_NEWFONT;
}
}
如上, 我设置了,但是鼠标移动到TOOLBAR控件按钮上时, 文本颜色没有变化啊~
该回答引用ChatGPT
NM_CUSTOMDRAW 消息用于自定义绘制控件的外观。对于工具栏控件，为了改变高亮时按钮文本的颜色，你需要在 CDDS_ITEMPREPAINT 阶段的处理过程中，设置 clrHighlightHotTrack 属性为你想要的高亮文本颜色即可。修改后的代码如下：
void MyToolBar::OnNMCustomdraw(NMHDR *pNMHDR, LRESULT *pResult) //on draw item
{
NMTBCUSTOMDRAW* pLVCD = reinterpret_cast<NMTBCUSTOMDRAW*> (pNMHDR);
DWORD DW = *pResult;
*pResult = 0; // First thing - check the draw stage(阶段). If it's the control's prepaint(preprint)
COLORREF crText;
COLORREF crHighText;
if ( CDDS_PREPAINT == pLVCD->nmcd.dwDrawStage ) //before a painting cycle begin
{
*pResult = CDRF_NOTIFYITEMDRAW; //自己完成绘制
}
else if ( CDDS_ITEMPREPAINT == pLVCD->nmcd.dwDrawStage ) //before an item is draw
{
// This is the prepaint stage for an item. Here's where we set the
// item's text color. Our return value will tell Windows to draw the
// item itself, but it will use the new color we set here.
// We'll cycle the colors through red, green, and light blue.
crText = RGB(255,0,0);
crHighText = RGB(0, 255, 0);
pLVCD->clrText = crText;
pLVCD->clrTextHighlight = crHighText;
pLVCD->clrHighlightHotTrack = crHighText; // 设置高亮时的文本颜色
*pResult = CDRF_NEWFONT;
}
}
这样，当鼠标移动到按钮上时，文本颜色就会变成你所设置的高亮文本颜色。