如何使用 Buddy Windows

藉由將其他控制項設定為追蹤列的夥伴視窗，您可以將這些控件自動定位在追蹤列的結尾作為標籤。

下圖顯示水準和垂直追蹤列，兩者都以靜態控件作為朋友視窗。

您需要知道的事項

技術

• Windows 控件

必要條件

• C/C++
• Windows 使用者介面程序設計

指示

使用 Buddy Windows

下列程式代碼範例會建立圖例中顯示的夥伴視窗。

void LabelTrackbarsWithBuddies(HWND hDlg)
{
    HWND hwndTrackbar;
    HWND hwndBuddy;
    
    const int staticWidth   = 50;
    const int staticHeight  = 20;

//======================================================
// For horizontal Trackbar.

    hwndTrackbar = GetDlgItem(hDlg, IDC_SLIDER1);

    hwndBuddy = CreateWindowEx(0, L"STATIC", L"Left", SS_RIGHT | WS_CHILD | WS_VISIBLE, 
                                    0, 0, staticWidth, staticHeight, hDlg, NULL, g_hInst, NULL);
                                    
    SendMessage(hwndTrackbar, TBM_SETBUDDY, (WPARAM)TRUE, (LPARAM)hwndBuddy);
    
    //-------------------------------------------------

    hwndBuddy = CreateWindowEx(0, L"STATIC", L"Right", SS_LEFT | WS_CHILD | WS_VISIBLE, 
                               0, 0, staticWidth, staticHeight, hDlg, NULL, g_hInst, NULL);
                                
    SendMessage(hwndTrackbar, TBM_SETBUDDY, (WPARAM)FALSE, (LPARAM)hwndBuddy);
    
//======================================================    
// For vertical Trackbar.
    
    hwndTrackbar = GetDlgItem(hDlg, IDC_SLIDER2);

    hwndBuddy = CreateWindowEx(0, L"STATIC", L"Top", SS_CENTER | WS_CHILD | WS_VISIBLE, 
                               0, 0, staticWidth, staticHeight, hDlg, NULL, g_hInst, NULL);
                               
    SendMessage(hwndTrackbar, TBM_SETBUDDY, (WPARAM)TRUE, (LPARAM)hwndBuddy);

    //-------------------------------------------------

    hwndBuddy = CreateWindowEx(0, L"STATIC", L"Bottom", SS_CENTER | WS_CHILD | WS_VISIBLE, 
                               0, 0, staticWidth, staticHeight, hDlg, NULL, g_hInst, NULL);
                               
    SendMessage(hwndTrackbar, TBM_SETBUDDY, (WPARAM)FALSE, (LPARAM)hwndBuddy);
}

備註

IDC_SLIDER1和IDC_SLIDER2是在資源編輯器中建立的追蹤列。

相關主題

使用追蹤列控件