设置菜单带bitmap,为什么16X16的图被削成13X13.谢谢

[yangchun2005]

如题

[thisisll]

是不是人家要留点空的地方？
把代码贴出来看看

[QuickGo]

我的一点个人建议,如果要在菜单上显示图标，还是采用自绘的方式比较合适，只需要处理MEASURE以及DRAWITEM就可以了，也不难实现，不要用现成的一些api，会导致图像失真。

[yangchun2005]

我就是用的api

CBitmap g_b1;
g_b1.LoadBitmap( IDB_BITMAP_SAVE );
...
...
::SetMenuItemBitmaps( pPopup->m_hMenu,IDM_SAVE,MF_BYCOMMAND,(HBITMAP)g_b1,NULL);

不知如何处理MEASURE以及DRAWITEM

[linsi]

帮顶一下。。。。

[Snow_Ice11111]

关注一下。

[QuickGo]

还是给段代码吧：
case WM_MEASUREITEM:
pMeasure=(LPMEASUREITEMSTRUCT)lparam;
pMeasure->itemWidth=100;
pMeasure->itemHeight=20;
switch(pMeasure->itemID)
{
case ID_MENU+12:

break;
case ID_MENU+13:

break;
}
break;
case WM_DRAWITEM:
InvalidateRect(hwnd,NULL,false);
pDrawItem=(LPDRAWITEMSTRUCT)lparam;
switch(pDrawItem->itemID)
{
case ID_MENU+12:
HBRUSH hBrush,hOldBrush;
HPEN hPen,hOldPen;

if(pDrawItem->itemAction == ODA_DRAWENTIRE)
{
hPen=CreatePen(PS_SOLID,1,GetSysColor(COLOR_MENU));
hBrush=CreateSolidBrush(GetSysColor(COLOR_MENU));

hOldPen=(HPEN)SelectObject(pDrawItem->hDC,hPen);
hOldBrush=(HBRUSH)SelectObject(pDrawItem->hDC,hBrush);

Rectangle(pDrawItem->hDC,
pDrawItem->rcItem.left-6,pDrawItem->rcItem.top-6,pDrawItem->rcItem.right+60,pDrawItem->rcItem.bottom+6);
DrawIconEx(pDrawItem->hDC,2,2,LoadIcon(hInstance,MAKEINTRESOURCE(IDI_ICON5)),16,16,0,CreateSolidBrush(GetSysColor(COLOR_BTNFACE)),DI_MASK|DI_IMAGE);
TextOut(pDrawItem->hDC,25,pDrawItem->rcItem.top,"Index",strlen("Index"));

DeleteObject(SelectObject(pDrawItem->hDC,hOldBrush));
DeleteObject(SelectObject(pDrawItem->hDC,hOldPen));
}

if(pDrawItem->itemAction == ODA_SELECT || pDrawItem->itemAction == ODS_HOTLIGHT)
{
HBRUSH hBrush,hOldBrush;
COLORREF OldColor;
HPEN hPen,hOldPen;
SetBkMode(pDrawItem->hDC,TRANSPARENT);
RECT rect=pDrawItem->rcItem;
rect.right=rect.left+20;

if(pDrawItem->itemState & ODS_SELECTED)
{
hBrush=CreateSolidBrush(GetSysColor(COLOR_ACTIVECAPTION));
hPen=CreatePen(PS_SOLID,1,GetSysColor(COLOR_MENU));

hOldBrush=(HBRUSH)SelectObject(pDrawItem->hDC,hBrush);
hOldPen=(HPEN)SelectObject(pDrawItem->hDC,hPen);

Rectangle(pDrawItem->hDC,pDrawItem->rcItem.left,pDrawItem->rcItem.top,
pDrawItem->rcItem.right,pDrawItem->rcItem.bottom);
DrawIconEx(pDrawItem->hDC,2,2,LoadIcon(hInstance,MAKEINTRESOURCE(IDI_ICON5)),16,16,0,NULL,DI_NORMAL);
OldColor=SetTextColor(pDrawItem->hDC,RGB(255,255,255));
TextOut(pDrawItem->hDC,pDrawItem->rcItem.left+25,
pDrawItem->rcItem.top,"Index",strlen("Index"));

//DrawEdge(pDrawItem->hDC,&rect,EDGE_RAISED,BF_RECT);
rect.left=rect.right;
rect.right+=1;
SetTextColor(pDrawItem->hDC,OldColor);
}
else
{
hBrush=CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
hPen=CreatePen(PS_SOLID,1,GetSysColor(COLOR_MENU));

hOldBrush=(HBRUSH)SelectObject(pDrawItem->hDC,hBrush);
hOldPen=(HPEN)SelectObject(pDrawItem->hDC,hPen);

Rectangle(pDrawItem->hDC,pDrawItem->rcItem.left-30,pDrawItem->rcItem.top,
pDrawItem->rcItem.right,pDrawItem->rcItem.bottom);
DrawIconEx(pDrawItem->hDC,2,2,LoadIcon(hInstance,MAKEINTRESOURCE(IDI_ICON5)),16,16,0,CreateSolidBrush(GetSysColor(COLOR_BTNFACE)),DI_NORMAL);
TextOut(pDrawItem->hDC,pDrawItem->rcItem.left+25,
pDrawItem->rcItem.top,"Index",strlen("Index"));
rect.left=rect.right;
rect.right+=1;
}
}

break;
}
break;

[QuickGo]

不怎么精妙，但是好歹是实现了

[ohfox]

你用GetSystemMetrics()看一下,菜单前面的位图大小就是13*13的