NtUserConvertMemHandle.c File Reference

#include "../win32nt.h"

Include dependency graph for NtUserConvertMemHandle.c:

Go to the source code of this file.

Functions
HGLOBAL	createGlobalMemory (const CHAR *pString, DWORD stringLength)
HANDLE	setClipboardData (UINT uFormat, HANDLE hGlobalMem)
HANDLE	getClipboardData (UINT uFormat)
	START_TEST (NtUserConvertMemHandle)

Function Documentation

createGlobalMemory()

HGLOBAL createGlobalMemory	(	const CHAR *	pString,
		DWORD	stringLength
	)

Definition at line 10 of file NtUserConvertMemHandle.c.

{
    HGLOBAL hGlobalBuffer = NULL;
    CHAR* pLockedBuffer = NULL;
 
    hGlobalBuffer = GlobalAlloc(GMEM_DDESHARE, stringLength);
    if (hGlobalBuffer == NULL)
    {
        return hGlobalBuffer;
    }
 
    pLockedBuffer = (CHAR*)GlobalLock(hGlobalBuffer);
    if (pLockedBuffer)
    {
        memcpy(pLockedBuffer, pString, stringLength);
    }
 
    GlobalUnlock(hGlobalBuffer);
 
    return hGlobalBuffer;
}

Referenced by START_TEST().

getClipboardData()

HANDLE getClipboardData

(

UINT

uFormat

)

Definition at line 57 of file NtUserConvertMemHandle.c.

{
    HANDLE hData = NULL;
    HANDLE hGlobal = NULL;
    PVOID pData = NULL;
    DWORD cbData = 0;
    GETCLIPBDATA gcd;
 
    hData = NtUserGetClipboardData(uFormat, &gcd);
    if (gcd.fGlobalHandle)
    {
        NtUserCreateLocalMemHandle(hData, NULL, 0, &cbData);
        hGlobal = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, cbData);
 
        if (hGlobal == NULL)
        {
            return hGlobal;
        }
 
        pData = GlobalLock(hGlobal);
        NtUserCreateLocalMemHandle(hData, pData, cbData, NULL);
        GlobalUnlock(hGlobal);
    }
 
    return hGlobal;
}

Referenced by START_TEST().

setClipboardData()

HANDLE setClipboardData	(	UINT	uFormat,
		HANDLE	hGlobalMem
	)

Definition at line 32 of file NtUserConvertMemHandle.c.

{
    DWORD dwSize = 0;
    PVOID pMem = NULL;
    HANDLE hRet = NULL;
    HANDLE hMem = NULL;
    SETCLIPBDATA scd = {FALSE, FALSE};
 
    // Get global memory
    pMem = GlobalLock(hGlobalMem);
    dwSize = GlobalSize(hGlobalMem);
 
    hMem = NtUserConvertMemHandle(pMem, dwSize);
    GlobalUnlock(hGlobalMem);
    if (hMem == NULL)
    {
        return hMem;
    }
 
    scd.fGlobalHandle = TRUE;
    hRet = NtUserSetClipboardData(uFormat, hMem, &scd);
 
    return hRet;
}

Referenced by START_TEST().

START_TEST()

START_TEST

(

NtUserConvertMemHandle

)

Definition at line 84 of file NtUserConvertMemHandle.c.

{
    HANDLE hMem;
    CONST CHAR testString[] = "Test string";
    HGLOBAL  hGlobal = NULL;
 
    hMem = NtUserConvertMemHandle(UlongToPtr(0xDEADBEEF), 0xFFFF);
    ok_hdl(hMem, NULL);
 
    // Alloc global memory
    hGlobal = createGlobalMemory(testString, sizeof(testString));
    if (hGlobal == NULL)
    {
        skip("hGlobal is NULL\n");
    }
    else
    {
        HANDLE hMem = NULL;
        HANDLE hRet = NULL;
 
        OpenClipboard(NULL);
        hRet = setClipboardData(CF_TEXT, hGlobal);
        CloseClipboard();
 
        if (hRet == NULL)
        {
            skip("Set clipboard data failed\n");
            goto cleanup;
        }
 
        OpenClipboard(NULL);
        hMem = getClipboardData(CF_TEXT);
        CloseClipboard();
 
        if (hMem)
        {
            PVOID pData = GlobalLock(hMem);
            ok_long(memcmp(pData, testString, sizeof(testString)), 0);
            GlobalUnlock(hMem);
        }
        else
        {
            skip("Get clipboard data failed\n");
        }
 
        cleanup:
        GlobalFree(hGlobal);
    }
}