補充壹下另壹種方法。
1，在頭文件中添加shellapi.h,或者直接添加如下代碼：
#ifndef?_INC_SHELLAPI#define?_INC_SHELLAPI
//
//?Define?API?decoration?for?direct?importing?of?DLL?references.
//
#ifndef?WINSHELLAPI
#if?!defined(_SHELL32_)
#define?WINSHELLAPIDECLSPEC_IMPORT
#else
#define?WINSHELLAPI
#endif
#endif?//?WINSHELLAPI
#ifndef?SHSTDAPI
#if?!defined(_SHELL32_)
#define?SHSTDAPI?EXTERN_C?DECLSPEC_IMPORT?HRESULT?STDAPICALLTYPE
#define?SHSTDAPI_(type)EXTERN_C?DECLSPEC_IMPORT?type?STDAPICALLTYPE
#else
#define?SHSTDAPI?STDAPI
#define?SHSTDAPI_(type)STDAPI_(type)
#endif
#endif?//?SHSTDAPI
#ifndef?SHDOCAPI
#if?!defined(_SHDOCVW_)
#define?SHDOCAPI?EXTERN_C?DECLSPEC_IMPORT?HRESULT?STDAPICALLTYPE
#define?SHDOCAPI_(type)EXTERN_C?DECLSPEC_IMPORT?type?STDAPICALLTYPE
#else
#define?SHDOCAPI?STDAPI
#define?SHDOCAPI_(type)STDAPI_(type)
#endif
#endif?//?SHDOCAPI
#if?!?(defined(lint)?||?defined(_lint)?||?defined(RC_INVOKED))
#if?(?_MSC_VER?>=?800?)?||?defined(_PUSHPOP_SUPPORTED)
#pragma?warning(disable:4103)
#if?!(defined(?MIDL_PASS?))?||?defined(?__midl?)
#pragma?pack(push)
#endif
#pragma?pack(1)
#else
#pragma?pack(1)
#endif
#endif?//?!?(defined(lint)?||?defined(_lint)?||?defined(RC_INVOKED))
#ifdef?__cplusplus
extern?"C"?{/*?Assume?C?declarations?for?C++?*/
#endif?/*?__cplusplus?*/
DECLARE_HANDLE(HDROP);
WINSHELLAPI?UINT?APIENTRY?DragQueryFileA(HDROP,UINT,LPSTR,UINT);
WINSHELLAPI?UINT?APIENTRY?DragQueryFileW(HDROP,UINT,LPWSTR,UINT);
#ifdef?UNICODE
#define?DragQueryFile?DragQueryFileW
#else
#define?DragQueryFile?DragQueryFileA
#endif?//?!UNICODE
WINSHELLAPI?BOOL?APIENTRY?DragQueryPoint(HDROP,LPPOINT);
WINSHELLAPI?VOID?APIENTRY?DragFinish(HDROP);
WINSHELLAPI?VOID?APIENTRY?DragAcceptFiles(HWND,BOOL);
#ifdef?__cplusplus
}
#endif?/*?__cplusplus?*/
#if?!?(defined(lint)?||?defined(_lint)?||?defined(RC_INVOKED))
#if?(?_MSC_VER?>=?800?)?||?defined(_PUSHPOP_SUPPORTED)
#pragma?warning(disable:4103)
#if?!(defined(?MIDL_PASS?))?||?defined(?__midl?)
#pragma?pack(pop)
#else
#pragma?pack()
#endif
#else
#pragma?pack()
#endif
#endif?//?!?(defined(lint)?||?defined(_lint)?||?defined(RC_INVOKED))
#endif?/*?_INC_SHELLAPI?*/
2，對話框屬性中勾選 接收文件（Accept files)
3,添加消息處理：
case?WM_DROPFILES:HDROP?hDropInfo?=?(HDROP)?wParam; //從WM_DROPFILES消息中獲取所拖放文件的數據結構的指針
DragQueryFile(hDropInfo,0,szFilePath,_MAX_PATH); //獲取文件路徑
DragFinish(hDropInfo); //拖放結束後,釋放內存?
SendDlgItemMessage(hWnd,IDC_FILEPATH_EDIT,WM_SETTEXT,MAX_PATH,(LPARAM)szFilePath);
下面是完整代碼：
#include?<windows.h>#include?<shellapi.h>
#include?<commdlg.h>
#include?"resource.h"
LRESULT?CALLBACK MainDlgProc(HWND,?UINT,?WPARAM,?LPARAM);
BOOLOpenFileDlg(HWND);?
char?szFilePath[MAX_PATH];
HINSTANCE?hInst;
int?APIENTRY?WinMain(HINSTANCE?hInstance,
HINSTANCE?hPrevInstance, LPSTR?lpCmdLine, intnCmdShow){
hInst?=?hInstance;
DialogBox(hInstance,?(LPCTSTR)IDD_MAIN_DLG,?NULL,?(DLGPROC)MainDlgProc);
return?0;
}
LRESULT?CALLBACK?MainDlgProc(HWND?hWnd,?UINT?message,?WPARAM?wParam,?LPARAM?lParam)
{
int?wmId,?wmEvent;
switch?(message)?
{
case?WM_COMMAND:
wmId=?LOWORD(wParam);?
wmEvent?=?HIWORD(wParam);?
switch?(wmId)
{
case?IDC_OPEN_BTN:
if(!OpenFileDlg(hWnd))
return?FALSE;
SendDlgItemMessage(hWnd,IDC_FILEPATH_EDIT,WM_SETTEXT,MAX_PATH,(LPARAM)szFilePath);
return?TRUE;
}
break;
case?WM_CLOSE:
EndDialog(hWnd,?0);
break;
case?WM_DROPFILES:
HDROP?hDropInfo?=?(HDROP)?wParam; //從WM_DROPFILES消息中獲取所拖放文件的數據結構的指針
DragQueryFile(hDropInfo,0,szFilePath,MAX_PATH); //獲取文件路徑
DragFinish(hDropInfo); //拖放結束後,釋放內存?
SendDlgItemMessage(hWnd,IDC_FILEPATH_EDIT,WM_SETTEXT,MAX_PATH,(LPARAM)szFilePath);
return?TRUE;
break;
}
return?0;
}
BOOL?OpenFileDlg(HWND?hwnd)
{
OPENFILENAME?ofn;
memset(szFilePath,0,MAX_PATH);
memset(&ofn,?0,?sizeof(ofn));
ofn.lStructSize?=sizeof(ofn);
ofn.hwndOwner=hwnd;
ofn.hInstance=GetModuleHandle(NULL);
ofn.nMaxFile?=MAX_PATH;
ofn.lpstrInitialDir?=".";
ofn.lpstrFile=szFilePath;
ofn.lpstrTitle="Open...";
ofn.Flags=OFN_PATHMUSTEXIST?|?OFN_FILEMUSTEXIST?|?OFN_HIDEREADONLY;
ofn.lpstrFilter?="*.*\0*.*\0";
if(!GetOpenFileName(&ofn))
{
ZeroMemory(&ofn,sizeof(OPENFILENAME)); //釋放內存
return?FALSE;
}
ZeroMemory(&ofn,sizeof(OPENFILENAME)); //釋放內存
return?TRUE;
}