Index: reactos/base/applications/mspaint/history.cpp
===================================================================
--- reactos/base/applications/mspaint/history.cpp	(revision 74717)
+++ reactos/base/applications/mspaint/history.cpp	(working copy)
@@ -129,6 +129,11 @@
     int oldWidth = GetWidth();
     int oldHeight = GetHeight();
 
+    if (nWidth <= 0)
+        nWidth = 1;
+    if (nHeight <= 0)
+        nHeight = 1;
+
     SelectObject(hDrawingDC, hBms[currInd]);
     DeleteObject(hBms[(currInd + 1) % HISTORYSIZE]);
     hBms[(currInd + 1) % HISTORYSIZE] = CreateDIBWithProperties(nWidth, nHeight);
Index: reactos/base/applications/mspaint/sizebox.cpp
===================================================================
--- reactos/base/applications/mspaint/sizebox.cpp	(revision 74717)
+++ reactos/base/applications/mspaint/sizebox.cpp	(working copy)
@@ -12,9 +12,9 @@
 
 /* FUNCTIONS ********************************************************/
 
-BOOL resizing = FALSE;
-short xOrig;
-short yOrig;
+static BOOL resizing = FALSE;
+static short xOrig;
+static short yOrig;
 
 LRESULT CSizeboxWindow::OnSetCursor(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 {
@@ -76,8 +76,6 @@
     {
         short xRel;
         short yRel;
-        ReleaseCapture();
-        resizing = FALSE;
         int imgXRes = imageModel.GetWidth();
         int imgYRes = imageModel.GetHeight();
         xRel = (GET_X_LPARAM(lParam) - xOrig) * 1000 / toolsModel.GetZoom();
@@ -100,5 +98,13 @@
             imageModel.Crop(imgXRes + xRel, imgYRes + yRel, 0, 0);
         SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) _T(""));
     }
+    ReleaseCapture();
+    resizing = FALSE;
     return 0;
 }
+
+LRESULT CSizeboxWindow::OnCancelMode(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
+{
+    resizing = FALSE;
+    return 0;
+}
Index: reactos/base/applications/mspaint/sizebox.h
===================================================================
--- reactos/base/applications/mspaint/sizebox.h	(revision 74717)
+++ reactos/base/applications/mspaint/sizebox.h	(working copy)
@@ -16,6 +16,7 @@
         MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
         MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
         MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
+        MESSAGE_HANDLER(WM_CANCELMODE, OnCancelMode)
     END_MSG_MAP()
 
     LRESULT OnSetCursor(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
@@ -22,4 +23,5 @@
     LRESULT OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
     LRESULT OnMouseMove(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
     LRESULT OnLButtonUp(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
+    LRESULT OnCancelMode(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
 };