1 files changed, 77 insertions, 0 deletions
diff --git a/gui/win32/ceglue.c b/gui/win32/ceglue.c
new file mode 100644
index 00000000..a0817f93
--- /dev/null
+++ b/gui/win32/ceglue.c
@@ -0,0 +1,77 @@
+#include <windows.h>
+#include "ceglue.h"
+
+BOOL FAR (*SHFullScreenPtr)(HWND hwnd, DWORD state) = NULL;
+
+void InitCeGlue (void)
+{
+  HINSTANCE ayg = LoadLibraryW (TEXT ("aygshell.dll"));
+  if (ayg != NULL) {
+    SHFullScreenPtr = (BOOL (*)(HWND, DWORD))
+      GetProcAddressW (ayg, TEXT ("SHFullScreen"));
+  }
+}
+
+// code to turn of screen adopted from
+// http://msdn.microsoft.com/en-us/library/ms838354.aspx
+
+// GDI Escapes for ExtEscape()
+#define QUERYESCSUPPORT    8
+ 
+// The following are unique to CE
+#define GETVFRAMEPHYSICAL   6144
+#define GETVFRAMELEN    6145
+#define DBGDRIVERSTAT    6146
+#define SETPOWERMANAGEMENT   6147
+#define GETPOWERMANAGEMENT   6148
+ 
+ 
+typedef enum _VIDEO_POWER_STATE {
+    VideoPowerOn = 1,
+    VideoPowerStandBy,
+    VideoPowerSuspend,
+    VideoPowerOff
+} VIDEO_POWER_STATE, *PVIDEO_POWER_STATE;
+ 
+ 
+typedef struct _VIDEO_POWER_MANAGEMENT {
+    ULONG Length;
+    ULONG DPMSVersion;
+    ULONG PowerState;
+} VIDEO_POWER_MANAGEMENT, *PVIDEO_POWER_MANAGEMENT;
+
+
+int CeEnableBacklight(int enable)
+{
+  HDC gdc;
+  int iESC=SETPOWERMANAGEMENT;
+
+  gdc = GetDC(NULL);
+  if (ExtEscape(gdc, QUERYESCSUPPORT, sizeof(int), (LPCSTR)&iESC, 
+      0, NULL)==0)
+  {
+    MessageBox(NULL,
+                L"Sorry, your Pocket PC does not support DisplayOff",
+                L"Pocket PC Display Off Feature",
+              MB_OK);
+    ReleaseDC(NULL, gdc);
+    return FALSE;
+  }
+  else
+  {
+    VIDEO_POWER_MANAGEMENT vpm;
+    vpm.Length = sizeof(VIDEO_POWER_MANAGEMENT);
+    vpm.DPMSVersion = 0x0001;
+    if (enable) {
+      vpm.PowerState = VideoPowerOn;
+    } else {
+      vpm.PowerState = VideoPowerOff;
+    }
+    // Power off the display
+    ExtEscape(gdc, SETPOWERMANAGEMENT, vpm.Length, (LPCSTR) &vpm, 
+              0, NULL);
+    ReleaseDC(NULL, gdc);
+    return TRUE;
+  }
+}
+