78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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/**************************************************************************
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* USERGDI1.C
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*
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* Returns information about USER.EXE and GDI.EXE
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*
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**************************************************************************/
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#include "toolpriv.h"
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/* SystemHeapInfo
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* Returns information about USER's and GDI's heaps
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*/
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BOOL TOOLHELPAPI SystemHeapInfo(
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SYSHEAPINFO FAR* lpSysHeap)
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{
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MODULEENTRY ModuleEntry;
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#ifndef WOW
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DWORD dw;
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WORD wFreeK;
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WORD wMaxHeapK;
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#endif
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/* Check the structure version number and pointer */
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if (!wLibInstalled || !lpSysHeap ||
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lpSysHeap->dwSize != sizeof (SYSHEAPINFO))
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return FALSE;
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/* Find the user data segment */
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ModuleEntry.dwSize = sizeof (MODULEENTRY);
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lpSysHeap->hUserSegment =
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UserGdiDGROUP(ModuleFindName(&ModuleEntry, "USER"));
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lpSysHeap->hGDISegment =
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UserGdiDGROUP(ModuleFindName(&ModuleEntry, "GDI"));
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#ifndef WOW
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/* We get the information about the heap percentages differently in
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* 3.0 and 3.1
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*/
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if ((wTHFlags & TH_WIN30) || !lpfnGetFreeSystemResources)
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{
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/* Get the space information about USER's heap */
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dw = UserGdiSpace(lpSysHeap->hUserSegment);
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wFreeK = LOWORD(dw) / 1024;
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wMaxHeapK = HIWORD(dw) / 1024;
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if (wMaxHeapK)
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lpSysHeap->wUserFreePercent = wFreeK * 100 / wMaxHeapK;
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else
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lpSysHeap->wUserFreePercent = 0;
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/* Get the space information about GDI's heap */
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dw = UserGdiSpace(lpSysHeap->hGDISegment);
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wFreeK = LOWORD(dw) / 1024;
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wMaxHeapK = HIWORD(dw) / 1024;
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if (wMaxHeapK)
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lpSysHeap->wGDIFreePercent = wFreeK * 100 / wMaxHeapK;
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else
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lpSysHeap->wGDIFreePercent = 0;
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}
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/* Get the information from USER in 3.1 */
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else
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{
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lpSysHeap->wUserFreePercent =
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(*(WORD (FAR PASCAL *)(WORD))lpfnGetFreeSystemResources)(2);
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lpSysHeap->wGDIFreePercent =
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(*(WORD (FAR PASCAL *)(WORD))lpfnGetFreeSystemResources)(1);
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}
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#else
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lpSysHeap->wUserFreePercent = GetFreeSystemResources(GFSR_USERRESOURCES);
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lpSysHeap->wGDIFreePercent = GetFreeSystemResources(GFSR_GDIRESOURCES);
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#endif
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return TRUE;
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}
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