请教一下关于win32 application的问题

Question

1.怎么样设置CreateWindow("staic")的标签透明，不挡背景颜色2.我在资源里插入了一个Dialog，在上面放了一个ComBox，怎么处理选择ComBox选项的消息？

Answer 1

1. WM_CTLCOLORSTATIC message，SetBkMode(TRANSPARENT);
2. CBN_SELENDOK notification message through the WM_COMMAND message

Answer 2

呵呵，两个问题都没有解决
我按你说的，写的代码： case WM_CTLCOLORSTATIC:
TempDC=GetDC(hLaCount);
SetBkMode(TempDC,TRANSPARENT);
ReleaseDC(hwnd,TempDC);
TempDC=GetDC(hLaSet);
SetBkMode(TempDC,TRANSPARENT);
ReleaseDC(hwnd,TempDC);
return 0;
case CBN_SELENDOK:
  iIndex=SendDlgItemMessage(hMusicDlg,IDC_COMBO1,CB_GETCURSEL,0,0);
  switch(iIndex)
  {
  case 0:
  strcpy(szName,(LPCTSTR)("春江花月夜.mp3"));
  hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
  EnableWindow(hTemp,true);
  break;
  case 1:
  strcpy(szName,(LPCTSTR)("流云行水.mp3"));
  hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
  EnableWindow(hTemp,true);
  break;
  case 2:
  strcpy(szName,(LPCTSTR)("高山流水.mp3"));
  hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
  EnableWindow(hTemp,true);
  break;
  default:
  strcpy(szName,(LPCTSTR)("高山流水.mp3"));
  hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
  EnableWindow(hTemp,true);
  break;
  }
break;点击好ComBox后，最起码让“播放”那个按钮激活吧，可是没有。是不是那出错误了？

Answer 3

case WM_CTLCOLORSTATIC:
{
static HBRUSH br = (HBRUSH)GetStockObject(NULL_BRUSH); HDC hDC = (HDC)wParam;
HWND hStatic = (HWND)lParam;
SetBkMode(hDC, TRANSPARENT);
SetTextColor(hDC, RGB(255, 0, 128)); return (LRESULT)br;
}

Answer 4

case WM_COMMAND:
{
if(IDC_COMBO1 == LOWORD(wParam))
{
HWND hWnd = (HWND)lParam;
switch(HIWORD(wParam))
{
case CBN_SELENDOK:
{
LRESULT lResult = SendMessage(hWnd, CB_GETCURSEL, 0, 0);
if(CB_ERR != lResult)
{
switch(lResult)
{
case 0:
MessageBox(NULL, _T("0"), NULL, 0);
break;
case 1:
MessageBox(NULL, _T("1"), NULL, 0);
break;
case 2:
MessageBox(NULL, _T("2"), NULL, 0);
break;
default:
break;
}
}
}
break; default:
break;
}
}

}
break;

Answer 5

case WM_INITDIALOG:
{
HWND hWnd = GetDlgItem(hDlg, IDC_COMBO1); SendMessage(hWnd, CB_ADDSTRING, 0, (LPARAM)_T("AAA"));
SendMessage(hWnd, CB_ADDSTRING, 0, (LPARAM)_T("BBB"));
SendMessage(hWnd, CB_ADDSTRING, 0, (LPARAM)_T("CCC"));
SendMessage(hWnd, CB_SETCURSEL, (WPARAM)0, 0);
}
return TRUE;

Answer 6

现在我的代码结构成这样的了 switch(message)
{
case WM_INITDIALOG:
hMusic=GetDlgItem(hMusicDlg,IDC_COMBO1);
SetWindowText(hMusic,"高山流水");
strcpy(szName,(LPCTSTR)("高山流水.mp3"));
SendDlgItemMessage(hMusicDlg,IDC_COMBO1,CB_ADDSTRING,0,(LPARAM)"春江花月夜");
SendDlgItemMessage(hMusicDlg,IDC_COMBO1,CB_ADDSTRING,0,(LPARAM)"流云行水");
SendDlgItemMessage(hMusicDlg,IDC_COMBO1,CB_ADDSTRING,0,(LPARAM)"高山流水");
SendMessage(hMusicDlg, CB_SETCURSEL, (WPARAM)0, 0);
//SendMessage(hMusic,CB_ADDSTRING,0,(LPARAM)(LPCTSTR)szCombo);
// SendMessage(hMusic,CB_ADDSTRING,0,(LPARAM)(LPCTSTR)szCombo2);
//SendMessage(hMusic,CB_ADDSTRING,0,(LPARAM)(LPCTSTR)szCombo3);
return 0;
case WM_COMMAND:
if(IDC_COMBO1 == LOWORD(wParam))
{
hTemp = (HWND)lParam;
switch(HIWORD(wParam))
{
case CBN_SELENDOK:
{
lResult = SendMessage(hTemp, CB_GETCURSEL, 0, 0);
if(CB_ERR != lResult)
{
switch(lResult)
{
case 0:
MessageBox(hMusicDlg, TEXT("0"), NULL, 0);
break;
case 1:
MessageBox(hMusicDlg, TEXT("1"), NULL, 0);
break;
case 2:
MessageBox(hMusicDlg, TEXT("2"), NULL, 0);
break;
default:
break;
}
}
}
break;
}
default:
break;
}
switch(LOWORD(wParam))
{
case ID_OPENMUSIC:    
hPlay=MCIWndCreate(hMusicDlg,hInst,MCIWNDF_RECORD|MCIWNDF_SHOWALL,LPSTR(szName));
MCIWndPlay(hPlay);

hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
EnableWindow(hTemp,false);
hTemp=GetDlgItem(hMusicDlg,ID_PAUSEMUSIC);
EnableWindow(hTemp,true);
hTemp=GetDlgItem(hMusicDlg,ID_DESTROYMUSIC);
EnableWindow(hTemp,true);
break;
case ID_PAUSEMUSIC:
MCIWndPause(hPlay);
hTemp=GetDlgItem(hMusicDlg,ID_PAUSEMUSIC);
EnableWindow(hTemp,false);
hTemp=GetDlgItem(hMusicDlg,ID_RESUMEMUSIC);
EnableWindow(hTemp,true);
break;
case ID_RESUMEMUSIC:
MCIWndResume(hPlay);
hTemp=GetDlgItem(hMusicDlg,ID_RESUMEMUSIC);
EnableWindow(hTemp,false);
hTemp=GetDlgItem(hMusicDlg,ID_PAUSEMUSIC);
EnableWindow(hTemp,true);
break;
case ID_DESTROYMUSIC:
MCIWndDestroy(hPlay);
hTemp=GetDlgItem(hMusicDlg,ID_DESTROYMUSIC);
EnableWindow(hTemp,false);
hTemp=GetDlgItem(hMusicDlg,ID_PAUSEMUSIC);
EnableWindow(hTemp,false);
hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
EnableWindow(hTemp,true);
break;
case IDC_HIDE:
ShowWindow(hMusicDlg,SW_HIDE);
//DestroyWindow(hMusicDlg);关闭
hMusic=NULL;
return TRUE;
case CBN_SELENDOK:
iIndex=SendDlgItemMessage(hMusicDlg,IDC_COMBO1,CB_GETCURSEL,0,0);
switch(iIndex)
{
case 0:
strcpy(szName,(LPCTSTR)("春江花月夜.mp3"));
hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
EnableWindow(hTemp,true);
break;
case 1:
strcpy(szName,(LPCTSTR)("流云行水.mp3"));
hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
EnableWindow(hTemp,true);
break;
case 2:
strcpy(szName,(LPCTSTR)("高山流水.mp3"));
hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
EnableWindow(hTemp,true);
break;
default:
strcpy(szName,(LPCTSTR)("高山流水.mp3"));
hTemp=GetDlgItem(hMusicDlg,ID_OPENMUSIC);
EnableWindow(hTemp,true);
break;
}
return 0;
}
return FALSE;

}
return FALSE; 我不会把它们合理搭配起来，有些button要点第二次才有效。
按你的方式没有CB_ADDSTRING上，可是我添加上的三个选项，只选项两个。

Answer 7

透明了，可是我要多次设置setwindowtext，字体会重叠，在网上查了好多，可是没有找到很好的解决方法，您有什么高见？呵呵，太麻烦你了