Use width scaled for the nativeZoom in Caret win32

This commit adapts the retrieval of width of Caret SystemParametersInfo
to be scaled as per the natie zoom as SystemParametersInfo retrieves
value for the primary zoom at startup.

Author: amartya4256

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Caret.java

@@ -132,7 +132,9 @@ Rectangle getBoundsInPixels () {
 	if (width == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			return new Rectangle (getXInPixels(), getYInPixels(), buffer [0], getHeightInPixels());
+			int width = DPIUtil.pixelToPoint(buffer [0], getPrimaryMonitorZoomAtStartup());
+			int widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
+			return new Rectangle (getXInPixels(), getYInPixels(), widthInPixels, getHeightInPixels());
 		}
 	}
 	return new Rectangle (getXInPixels(), getYInPixels(), getWidthInPixels(), getHeightInPixels());
@@ -226,7 +228,9 @@ Point getSizeInPixels () {
 	if (width == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			return new Point (buffer [0], getHeightInPixels());
+			int width = DPIUtil.pixelToPoint(buffer [0], getPrimaryMonitorZoomAtStartup());
+			int widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
+			return new Point (widthInPixels, getHeightInPixels());
 		}
 	}
 	return new Point (getWidthInPixels(), getHeightInPixels());
@@ -370,7 +374,8 @@ void resize () {
 	if (image == null && widthInPixels == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			widthInPixels = buffer [0];
+			int width = DPIUtil.pixelToPoint(buffer [0], getPrimaryMonitorZoomAtStartup());
+			widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
 		}
 	}
 	OS.CreateCaret (hwnd, hBitmap, widthInPixels, getHeightInPixels());
@@ -449,7 +454,8 @@ void setFocus () {
 	if (image == null && widthInPixels == 0) {
 		int [] buffer = new int [1];
 		if (OS.SystemParametersInfo (OS.SPI_GETCARETWIDTH, 0, buffer, 0)) {
-			widthInPixels = buffer [0];
+			int width = DPIUtil.pixelToPoint(buffer [0], getPrimaryMonitorZoomAtStartup());
+			widthInPixels = Win32DPIUtils.pointToPixel(width, getNativeZoom());
 		}
 	}
 	OS.CreateCaret (hwnd, hBitmap, widthInPixels, getHeightInPixels());
@@ -646,6 +652,13 @@ public void setVisible (boolean visible) {
 	}
 }
 
+private int getPrimaryMonitorZoomAtStartup() {
+	long hDC = OS.GetDC(0);
+	int dpi = OS.GetDeviceCaps(hDC, OS.LOGPIXELSX);
+	OS.ReleaseDC(0, hDC);
+	return DPIUtil.mapDPIToZoom(dpi);
+}
+
 /**
  * <b>IMPORTANT:</b> This method is not part of the public
  * API for Image. It is marked public only so that it