WIN32 -隐藏控件(静态文本(标签)除外)

Question

我正在Windows中使用Windows5.0MobileSDK创建一个对话框，使用Visual 2008用C创建WIN32。我使用SW_SHOW和SW_HIDE常量和ShowWindow函数在对话框中隐藏和显示控件，该对话框由静态文本(标签)和编辑文本(文本框)控件组成。我使用“资源编辑器和工具箱”将控件拖放到对话框中。我将可视属性设置为false的一些控件。单击按钮时，不可见控件将可见，可见控件将不可见。

然而，只有我的编辑文本(文本框)控件似乎正在显示和隐藏，但ShowWindow函数似乎对我的静态文本(标签)没有任何影响-它们不会隐藏和显示。下面是我的密码。为什么会这样呢？

#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include <windowsx.h>
#include <winuser.h>
#include "ScanCAPI.h"
#include "resource.h"

#pragma comment(lib, "Kernel32.lib")

LRESULT CALLBACK BasicScanProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    DWORD           dwResult;
    TCHAR           szLabelType[256];
    TCHAR           szLen[MAX_PATH];
    TCHAR           szMsgBuf[256];
    LPSCAN_BUFFER   lpScanBuf;
    HWND            hctl_data, hctl_length, hctl_type, hctl1, hctl2, hWndComboBox,  hnd_static5, hnd_static6, hnd_static7, hnd_pic1, hnd_pic2, hnd_static1, hnd_static2, hnd_static4, hwd_button1, hwd_static5, hwd_static6, hwd_static7, hwd_edit1, hwd_edit2;

    switch(uMsg)
    {

        case WM_COMMAND:

        hctl_length = GetDlgItem(hwnd,IDC_EDIT_LEN);
        hctl_type = GetDlgItem(hwnd,IDC_EDIT_TYPE);
        hWndComboBox = GetDlgItem(hwnd,IDC_COMBO1);

        hnd_static1 = GetDlgItem(hwnd,IDC_STATIC1);
        hnd_static2 = GetDlgItem(hwnd,IDC_STATIC2);
        hnd_static4 = GetDlgItem(hwnd,IDC_STATIC4);
        hctl_data = GetDlgItem(hwnd,IDC_EDIT_DATA);
        hctl_length = GetDlgItem(hwnd,IDC_EDIT_LEN);
        hwd_button1 = GetDlgItem(hwnd,IDC_BUTTON1);
        hwd_static5 = GetDlgItem(hwnd,IDC_STATIC5);
        hwd_static6 = GetDlgItem(hwnd,IDC_STATIC6);
        hwd_static7 = GetDlgItem(hwnd,IDC_STATIC7);
        hwd_edit1 = GetDlgItem(hwnd,IDC_EDIT1);
        hwd_edit2 = GetDlgItem(hwnd,IDC_EDIT2);


            switch (LOWORD(wParam))
            {

            case IDC_BUTTON1:

                    ShowWindow(hnd_static1, SW_SHOW);
                    ShowWindow(hnd_static2, SW_SHOW);
                    ShowWindow(hnd_static4, SW_SHOW);
                    ShowWindow(hctl_data, SW_SHOW);
                    ShowWindow(hctl_length, SW_SHOW);
                    ShowWindow(hWndComboBox, SW_SHOW);
                    ShowWindow(hwd_button1, SW_HIDE);
                    ShowWindow(hwd_static5, SW_HIDE);
                    ShowWindow(hwd_static6, SW_HIDE);
                    ShowWindow(hwd_static7, SW_HIDE);
                    ShowWindow(hwd_edit1, SW_HIDE);
                    ShowWindow(hwd_edit2, SW_HIDE);



     }

下面请查找MyResource.h头文件的内容：

//{{NO_DEPENDENCIES}}
// Microsoft Visual C++ generated include file.
// Used by BasicScan.rc
//
#define IDD_DIALOG_SSCAN                101
#define IDI_ICON1                       102
#define IDC_STATIC1                     995
#define IDC_STATIC2                     996
#define IDC_STATIC3                     997
#define IDC_STATIC4                     998
#define IDC_STATIC5                     999
#define IDC_EDIT_DATA                   1000
#define IDC_EDIT_LEN                    1001
#define IDC_EDIT_TYPE                   1002
#define IDC_BUTTON_SOFTTRIGGER          1003
#define IDC_CONTINUOUS                  1004
#define IDC_COMBO1                      1005
#define IDC_STATIC6                     1006
#define IDC_STATIC7                     1007
#define IDC_STATIC8                     1008
#define IDC_STATIC9                     1009
#define IDC_EDIT1                       1010
#define IDC_EDIT2                       1011
#define IDC_BUTTON1                     1012
#define IDS_FAILURE                     57345
#define IDS_ERR_BUF                     57346
#define IDS_DEVICE_FAILURE              57347
#define IDS_READ_PENDING                57348
#define IDS_READ_CANCELLED              57349
#define IDS_READY                       57350
#define IDS_INACTIVE                    57351

// Next default values for new objects
// 
#ifdef APSTUDIO_INVOKED
#ifndef APSTUDIO_READONLY_SYMBOLS
#define _APS_NEXT_RESOURCE_VALUE        105
#define _APS_NEXT_COMMAND_VALUE         40001
#define _APS_NEXT_CONTROL_VALUE         1014
#define _APS_NEXT_SYMED_VALUE           106
#endif
#endif

Answer 1

使用下面的示例代码，隐藏静态文本在Windows 10上对我有效。你可以试试。

对话框过程中的C++代码：

case WM_COMMAND:
{
    hwd_static1 = GetDlgItem(hDlg, IDC_STATIC1);
    hwd_static2 = GetDlgItem(hDlg, IDC_STATIC2);
    hwd_static3 = GetDlgItem(hDlg, IDC_STATIC3);

    if (LOWORD(wParam) == IDC_BUTTON_HIDE)
    {
        ShowWindow(hwd_static1, SW_HIDE);
        ShowWindow(hwd_static2, SW_HIDE);
        ShowWindow(hwd_static3, SW_HIDE);

        return (INT_PTR)TRUE;
    }

    if (LOWORD(wParam) == IDC_BUTTON_SHOW)
    {
        ShowWindow(hwd_static1, SW_SHOW);
        ShowWindow(hwd_static2, SW_SHOW);
        ShowWindow(hwd_static3, SW_SHOW);

        return (INT_PTR)TRUE;
    }
}
break;

Resource.h中的资源in：

#define IDC_STATIC1                     995
#define IDC_STATIC2                     996
#define IDC_STATIC3                     997
#define IDC_BUTTON_HIDE                 1001
#define IDC_BUTTON_SHOW                 1002

project_name.rc文件中的资源脚本：

LTEXT           "static text 1",IDC_STATIC1,42,14,114,8,SS_NOPREFIX
LTEXT           "static text 2",IDC_STATIC2,42,26,114,8,SS_NOPREFIX
LTEXT           "static text 3",IDC_STATIC3,40,94,147,31,SS_NOPREFIX

PUSHBUTTON      "Hide",IDC_BUTTON_HIDE,142,43,43,14
PUSHBUTTON      "Show",IDC_BUTTON_SHOW,141,78,44,14

显示

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隐

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