114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
#include <windows.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include "hook/table.h"
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#include "hooklib/config.h"
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#include "hooklib/gfx/gfx.h"
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#include "util/dprintf.h"
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typedef BOOL (WINAPI *ShowWindow_t)(HWND hWnd, int nCmdShow);
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static BOOL WINAPI hook_ShowWindow(HWND hWnd, int nCmdShow);
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static struct gfx_config gfx_config;
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static ShowWindow_t next_ShowWindow;
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static const struct hook_symbol gfx_hooks[] = {
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{
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.name = "ShowWindow",
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.patch = hook_ShowWindow,
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.link = (void **) &next_ShowWindow,
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},
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};
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void gfx_hook_init(const struct gfx_config *cfg, HINSTANCE self)
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{
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assert(cfg != NULL);
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if (!cfg->enable) {
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return;
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}
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memcpy(&gfx_config, cfg, sizeof(*cfg));
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hook_table_apply(NULL, "user32.dll", gfx_hooks, _countof(gfx_hooks));
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}
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static BOOL WINAPI hook_ShowWindow(HWND hWnd, int nCmdShow)
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{
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dprintf("Gfx: ShowWindow hook hit\n");
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if (!gfx_config.framed && nCmdShow == SW_RESTORE) {
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nCmdShow = SW_SHOW;
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}
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return next_ShowWindow(hWnd, nCmdShow);
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}
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HRESULT gfx_frame_window(HWND hwnd)
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{
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HRESULT hr;
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DWORD error;
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LONG style;
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RECT rect;
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BOOL ok;
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SetLastError(ERROR_SUCCESS);
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style = GetWindowLongW(hwnd, GWL_STYLE);
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error = GetLastError();
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if (error != ERROR_SUCCESS) {
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hr = HRESULT_FROM_WIN32(error);
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dprintf("Gfx: GetWindowLongPtrW(%p, GWL_STYLE) failed: %x\n",
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hwnd,
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(int) hr);
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return hr;
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}
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ok = GetClientRect(hwnd, &rect);
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if (!ok) {
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hr = HRESULT_FROM_WIN32(GetLastError());
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dprintf("Gfx: GetClientRect(%p) failed: %x\n", hwnd, (int) hr);
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return hr;
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}
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style |= WS_BORDER | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU;
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ok = AdjustWindowRect(&rect, style, FALSE);
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if (!ok) {
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/* come on... */
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hr = HRESULT_FROM_WIN32(GetLastError());
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dprintf("Gfx: AdjustWindowRect failed: %x\n", (int) hr);
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return hr;
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}
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/* This... always seems to set an error, even though it works? idk */
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SetWindowLongW(hwnd, GWL_STYLE, style);
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ok = SetWindowPos(
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hwnd,
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HWND_TOP,
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rect.left,
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rect.top,
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rect.right - rect.left,
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rect.bottom - rect.top,
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SWP_FRAMECHANGED | SWP_NOMOVE);
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if (!ok) {
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hr = HRESULT_FROM_WIN32(GetLastError());
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dprintf("Gfx: SetWindowPos(%p) failed: %x\n", hwnd, (int) hr);
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return hr;
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}
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return S_OK;
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}
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