使 Edit Controls 具有自动完成功能。

VC++实现编辑控件自动完成功能

最新推荐文章于 2025-10-16 09:08:10 发布

原创最新推荐文章于 2025-10-16 09:08:10 发布 · 1.7k 阅读

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#null #winapi #wrapper #callback #vc++ #ie

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博客介绍了在VC++中为编辑控件启用自动完成功能，且无需平台SDK，还提到了静态链接方式，要求IE5以上版本，并给出了示例。

链接：Enable Auto-complete on Your Edit Controls in VC++
Auto-complete edit and combo, without Platform SDK

一. 静态链接 - (注：需要 IE5 以上)。
Here's an example:

#include <shlwapi.h> 
#include <ole2.h>
#pragma comment (lib, "shlwapi.lib")

LRESULT CALLBACK MyDialogProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_INITDIALOG:
    HWND hFilePath;
    
    CoInitialize (NULL);
    hFilePath = GetDlgItem (hWnd, ID_FILEPATH);
    SHAutoComplete (hFilePath, SHACF_DEFAULT);
    break;

case WM_DESTROY:
    CoUninitialize();
    PostQuitMessage (0);
    break;
}
}




二. 动态调用：

The wrapper function.
 







// See the MSDN for SHAutoComplete for a full 



// description of what these options do.
#define SHACF_DEFAULT                   0x00000000
#define SHACF_FILESYSTEM                0x00000001
#define SHACF_URLALL                    (SHACF_URLHISTORY | SHACF_URLMRU)
#define SHACF_URLHISTORY                0x00000002
#define SHACF_URLMRU                    0x00000004
#define SHACF_USETAB                    0x00000008
#define SHACF_FILESYS_ONLY              0x00000010

#define SHACF_AUTOSUGGEST_FORCE_ON      0x10000000
#define SHACF_AUTOSUGGEST_FORCE_OFF     0x20000000
#define SHACF_AUTOAPPEND_FORCE_ON       0x40000000
#define SHACF_AUTOAPPEND_FORCE_OFF      0x80000000
typedef HRESULT (WINAPI *SHAUTOCOMPLETEFN) 
    (HWND hTarget, DWORD dwFlags);
static HINSTANCE hSHLWAPIDLL = NULL;

bool SetupForAutoComplete(HWND hTarget, DWORD dwFlags)
{
    if (hTarget == NULL)
    {
        return false;
    }

    bool ok = false;

    if (hSHLWAPIDLL == NULL)
    {
        hSHLWAPIDLL= LoadLibrary("SHLWAPI.DLL");
        if (hSHLWAPIDLL== NULL)
        {
            return false;
        }
    }

    SHAUTOCOMPLETEFN pSHAC = 
        (SHAUTOCOMPLETEFN)GetProcAddress(hSHLWAPIDLL, 
        "SHAutoComplete");

    if (pSHAC != NULL)
    {
        ok = SUCCEEDED(pSHAC(hTarget, dwFlags));
    }

    return ok;
}
 




调用：
 


BOOL CMyDialog::OnInitDialog()
{
...
    // enable auto complete for m_myEdit
    SetupForAutoComplete(m_myEdit.m_hWnd, 
        SHACF_FILESYSTEM);
...
}