/// <summary>
/// Sets an extension control property image (if supported by tablet).
/// </summary>
/// <param name="context_I">wintab context</param>
/// <param name="extTagIndex_I">which extension tag we're setting</param>
/// <param name="tabletIndex_I">index of the tablet being set</param>
/// <param name="controlIndex_I">the index of the control being set</param>
/// <param name="functionIndex_I">the index of the control function being set</param>
/// <param name="propertyID_I">ID of the property being set</param>
/// <param name="value_I">value of the property being set (a string)</param>
/// <returns>true if successful</returns>
public static bool ControlPropertySetImage(
HCTX context_I,
byte extTagIndex_I,
byte tabletIndex_I,
byte controlIndex_I,
byte functionIndex_I,
ushort propertyID_I,
String imageFilePath_I
)
{
bool retStatus = false;
WTExtensionImageProperty extProperty = new WTExtensionImageProperty();
IntPtr buf = CMemUtils.AllocUnmanagedBuf(extProperty);
try
{
byte[] imageBytes = null;
System.Drawing.Image newImage = Image.FromFile(imageFilePath_I);
if (newImage == null)
{
MessageBox.Show("Oops - couldn't find/read image: " + imageFilePath_I);
return(false);
}
using (MemoryStream ms = new MemoryStream())
{
newImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
imageBytes = ms.ToArray();
}
extProperty.extBase.version = 0;
extProperty.extBase.tabletIndex = tabletIndex_I;
extProperty.extBase.controlIndex = controlIndex_I;
extProperty.extBase.functionIndex = functionIndex_I;
extProperty.extBase.propertyID = propertyID_I;
extProperty.extBase.reserved = 0;
extProperty.extBase.dataSize = (uint)imageBytes.Length;
extProperty.data = new byte[WTExtensionsGlobal.WTExtensionPropertyImageMaxDataBytes];
// Send image as an array of bytes.
System.Buffer.BlockCopy(imageBytes, 0, extProperty.data, 0, (int)extProperty.extBase.dataSize);
Marshal.StructureToPtr(extProperty, buf, false);
retStatus = CWintabFuncs.WTExtSet((UInt32)context_I, (UInt32)extTagIndex_I, buf);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
CMemUtils.FreeUnmanagedBuf(buf);
return(retStatus);
}
/// <summary>
/// Sets an extension control property image (if supported by tablet).
/// </summary>
/// <param name="context_I">wintab context</param>
/// <param name="extTagIndex_I">which extension tag we're setting</param>
/// <param name="tabletIndex_I">index of the tablet being set</param>
/// <param name="controlIndex_I">the index of the control being set</param>
/// <param name="functionIndex_I">the index of the control function being set</param>
/// <param name="propertyID_I">ID of the property being set</param>
/// <param name="value_I">value of the property being set (a string)</param>
/// <returns>true if successful</returns>
public static bool ControlPropertySetImage(
HCTX context_I,
byte extTagIndex_I,
byte tabletIndex_I,
byte controlIndex_I,
byte functionIndex_I,
ushort propertyID_I,
String imageFilePath_I
)
{
bool retStatus = false;
WTExtensionImageProperty extProperty = new WTExtensionImageProperty();
IntPtr buf = CMemUtils.AllocUnmanagedBuf(extProperty);
try
{
byte[] imageBytes = null;
System.Drawing.Image newImage = Image.FromFile(imageFilePath_I);
if (newImage == null)
{
MessageBox.Show("Oops - couldn't find/read image: " + imageFilePath_I);
return false;
}
using (MemoryStream ms = new MemoryStream())
{
newImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
imageBytes = ms.ToArray();
}
extProperty.extBase.version = 0;
extProperty.extBase.tabletIndex = tabletIndex_I;
extProperty.extBase.controlIndex = controlIndex_I;
extProperty.extBase.functionIndex = functionIndex_I;
extProperty.extBase.propertyID = propertyID_I;
extProperty.extBase.reserved = 0;
extProperty.extBase.dataSize = (uint)imageBytes.Length;
extProperty.data = new byte[WTExtensionsGlobal.WTExtensionPropertyImageMaxDataBytes];
// Send image as an array of bytes.
System.Buffer.BlockCopy(imageBytes, 0, extProperty.data, 0, (int)extProperty.extBase.dataSize);
Marshal.StructureToPtr(extProperty, buf, false);
retStatus = CWintabFuncs.WTExtSet((UInt32)context_I, (UInt32)extTagIndex_I, buf);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
CMemUtils.FreeUnmanagedBuf(buf);
return retStatus;
}