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Add PMv2 related APIs

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This commit is contained in:
driver1998
2020-09-02 11:03:14 +08:00
parent ef1b1557c9
commit a3a139e3ef
2 changed files with 59 additions and 0 deletions
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15
src/include/86box/win.h
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@@ -33,6 +33,19 @@
# include "resource.h"
# undef BITMAP
/* DPI Awareness Context, copied from MinGW-w64 windef.h */
#ifndef _DPI_AWARENESS_CONTEXTS_
DECLARE_HANDLE(DPI_AWARENESS_CONTEXT);
#define DPI_AWARENESS_CONTEXT_UNAWARE ((DPI_AWARENESS_CONTEXT)-1)
#define DPI_AWARENESS_CONTEXT_SYSTEM_AWARE ((DPI_AWARENESS_CONTEXT)-2)
#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE ((DPI_AWARENESS_CONTEXT)-3)
#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((DPI_AWARENESS_CONTEXT)-4)
#define DPI_AWARENESS_CONTEXT_UNAWARE_GDISCALED ((DPI_AWARENESS_CONTEXT)-5)
#endif
#ifndef WM_DPICHANGED_AFTERPARENT
#define WM_DPICHANGED_AFTERPARENT 0x02E3
#endif
/* Class names and such. */
#define CLASS_NAME L"86BoxMainWnd"
@@ -119,6 +132,8 @@ extern void win_joystick_handle(PRAWINPUT raw);
extern void win_notify_dlg_open(void);
extern void win_notify_dlg_closed(void);
extern int win_get_dpi(HWND hwnd);
extern int win_get_system_metrics(int i, int dpi);
extern LPARAM win_get_string(int id);

44
src/win/win_ui.c
View File

@@ -37,6 +37,7 @@
#include <86box/vid_ega.h> // for update_overscan
#include <86box/plat.h>
#include <86box/plat_midi.h>
#include <86box/plat_dynld.h>
#include <86box/ui.h>
#include <86box/win.h>
#include <86box/version.h>
@@ -73,6 +74,43 @@ static int save_window_pos = 0, pause_state = 0;
static int vis = -1;
/* Per Monitor DPI Aware v2 APIs, Windows 10 v1703+ */
void* user32_handle = NULL;
static UINT (WINAPI *pGetDpiForWindow)(HWND);
static UINT (WINAPI *pGetSystemMetricsForDpi)(int i, UINT dpi);
static DPI_AWARENESS_CONTEXT (WINAPI *pGetWindowDpiAwarenessContext)(HWND);
static BOOL (WINAPI *pAreDpiAwarenessContextsEqual)(DPI_AWARENESS_CONTEXT A, DPI_AWARENESS_CONTEXT B);
static dllimp_t user32_imports[] = {
{ "GetDpiForWindow", &pGetDpiForWindow },
{ "GetSystemMetricsForDpi", &pGetSystemMetricsForDpi },
{ "GetWindowDpiAwarenessContext", &pGetWindowDpiAwarenessContext },
{ "AreDpiAwarenessContextsEqual", &pAreDpiAwarenessContextsEqual },
{ NULL, NULL }
};
int
win_get_dpi(HWND hwnd) {
if (user32_handle != NULL) {
return pGetDpiForWindow(hwnd);
} else {
HDC dc = GetDC(hwnd);
UINT dpi = GetDeviceCaps(dc, LOGPIXELSX);
ReleaseDC(hwnd, dc);
return dpi;
}
}
int win_get_system_metrics(int index, int dpi) {
if (user32_handle != NULL) {
/* Only call GetSystemMetricsForDpi when we are using PMv2 */
DPI_AWARENESS_CONTEXT c = pGetWindowDpiAwarenessContext(hwndMain);
if (pAreDpiAwarenessContextsEqual(c, DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2))
return pGetSystemMetricsForDpi(index, dpi);
}
return GetSystemMetrics(index);
}
/* Set host cursor visible or not. */
void
show_cursor(int val)
@@ -894,6 +932,9 @@ ui_init(int nCmdShow)
TASKDIALOGCONFIG tdconfig = {0};
TASKDIALOG_BUTTON tdbuttons[] = {{IDCANCEL, MAKEINTRESOURCE(IDS_2119)}};
/* Load DPI related Windows 10 APIs */
user32_handle = dynld_module("user32.dll", user32_imports);
/* Set up TaskDialog configuration. */
tdconfig.cbSize = sizeof(tdconfig);
tdconfig.dwFlags = TDF_ENABLE_HYPERLINKS;
@@ -1137,6 +1178,9 @@ ui_init(int nCmdShow)
discord_close();
#endif
if (user32_handle != NULL)
dynld_close(user32_handle);
return(messages.wParam);
}