WinBoard multi-monitor support

[xboard.git] / winboard / winboard.c

diff --git a/winboard/winboard.c b/winboard/winboard.c
index f86bdea..a24c8e4 100644 (file)
--- a/winboard/winboard.c
+++ b/winboard/winboard.c
@@ -224,6 +224,7 @@ static struct { int x; int y; int mode; } backTextureSquareInfo[BOARD_RANKS][BOA
 #else\r
 \r
 \r
+\r
 #if defined(_winmajor)\r
 #define oldDialog (_winmajor < 4)\r
 #else\r
@@ -982,16 +983,17 @@ InitApplication(HINSTANCE hInstance)
 \r
 /* Set by InitInstance, used by EnsureOnScreen */\r
 int screenHeight, screenWidth;\r
+RECT screenGeometry;\r
 \r
 void\r
 EnsureOnScreen(int *x, int *y, int minX, int minY)\r
 {\r
 //  int gap = GetSystemMetrics(SM_CYFRAME) + GetSystemMetrics(SM_CYCAPTION);\r
   /* Be sure window at (x,y) is not off screen (or even mostly off screen) */\r
-  if (*x > screenWidth - 32) *x = 0;\r
-  if (*y > screenHeight - 32) *y = 0;\r
-  if (*x < minX) *x = minX;\r
-  if (*y < minY) *y = minY;\r
+  if (*x > screenGeometry.right - 32) *x = screenGeometry.left;\r
+  if (*y > screenGeometry.bottom - 32) *y = screenGeometry.top;\r
+  if (*x < screenGeometry.left + minX) *x = screenGeometry.left + minX;\r
+  if (*y < screenGeometry.top + minY) *y = screenGeometry.top + minY;\r
 }\r
 \r
 VOID\r
@@ -1052,6 +1054,32 @@ InitTextures()
   }\r
 }\r
 \r
+#ifndef SM_CXVIRTUALSCREEN\r
+#define SM_CXVIRTUALSCREEN 78\r
+#endif\r
+#ifndef SM_CYVIRTUALSCREEN\r
+#define SM_CYVIRTUALSCREEN 79\r
+#endif\r
+#ifndef SM_XVIRTUALSCREEN \r
+#define SM_XVIRTUALSCREEN 76\r
+#endif\r
+#ifndef SM_YVIRTUALSCREEN \r
+#define SM_YVIRTUALSCREEN 77\r
+#endif\r
+\r
+VOID\r
+InitGeometry()\r
+{\r
+  screenHeight = GetSystemMetrics(SM_CYVIRTUALSCREEN);\r
+  if( !screenHeight ) screenHeight = GetSystemMetrics(SM_CYSCREEN);\r
+  screenWidth = GetSystemMetrics(SM_CXVIRTUALSCREEN);\r
+  if( !screenWidth ) screenWidth = GetSystemMetrics(SM_CXSCREEN);\r
+  screenGeometry.left = GetSystemMetrics(SM_XVIRTUALSCREEN);\r
+  screenGeometry.top = GetSystemMetrics(SM_YVIRTUALSCREEN);\r
+  screenGeometry.right = screenGeometry.left + screenWidth;\r
+  screenGeometry.bottom = screenGeometry.top + screenHeight;\r
+}\r
+\r
 BOOL\r
 InitInstance(HINSTANCE hInstance, int nCmdShow, LPSTR lpCmdLine)\r
 {\r
@@ -1070,7 +1098,7 @@ InitInstance(HINSTANCE hInstance, int nCmdShow, LPSTR lpCmdLine)
     GetCurrentDirectory(MSG_SIZ, installDir);\r
   }\r
   gameInfo.boardWidth = gameInfo.boardHeight = 8; // [HGM] won't have open window otherwise\r
-  screenWidth = screenHeight = 1000; // [HGM] placement: kludge to allow calling EnsureOnScreen from InitAppData\r
+  InitGeometry();\r
   InitAppData(lpCmdLine);      /* Get run-time parameters */\r
   /* xboard, and older WinBoards, controlled the move sound with the\r
      appData.ringBellAfterMoves option.  In the current WinBoard, we\r
@@ -1117,8 +1145,7 @@ InitInstance(HINSTANCE hInstance, int nCmdShow, LPSTR lpCmdLine)
   iconBlack = LoadIcon(hInstance, "icon_black");\r
   iconCurrent = iconWhite;\r
   InitDrawingColors();\r
-  screenHeight = GetSystemMetrics(SM_CYSCREEN);\r
-  screenWidth = GetSystemMetrics(SM_CXSCREEN);\r
+\r
   InitPosition(0); // to set nr of ranks and files, which might be non-default through command-line args\r
   for (ibs = (int) NUM_SIZES - 1; ibs >= 0; ibs--) {\r
     /* Compute window size for each board size, and use the largest\r