public HResult ExtractAndDrawThumbnail(IntPtr hdc, uint iconSize, out WTS_CACHEFLAGS flags, User32.RECT iconBounds, out bool retrieved, bool isHidden, bool isRefresh = false) { HResult res = HResult.S_OK; ISharedBitmap bmp = null; flags = WTS_CACHEFLAGS.WTS_DEFAULT; WTS_THUMBNAILID thumbId = new WTS_THUMBNAILID(); try { retrieved = false; res = ThumbnailCache.GetThumbnail(this._Item.ComInterface, iconSize, isRefresh ? (WTS_FLAGS.WTS_FORCEEXTRACTION | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE) : (WTS_FLAGS.WTS_INCACHEONLY | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE), out bmp, flags, thumbId); IntPtr hBitmap = IntPtr.Zero; if (bmp != null) { bmp.GetSharedBitmap(out hBitmap); retrieved = true; int width; int height; Gdi32.ConvertPixelByPixel(hBitmap, out width, out height); Gdi32.NativeDraw(hdc, hBitmap, iconBounds.Left + (iconBounds.Right - iconBounds.Left - width) / 2, iconBounds.Top + (iconBounds.Bottom - iconBounds.Top - height) / 2, width, height, isHidden); Gdi32.DeleteObject(hBitmap); } } finally { if (bmp != null) { Marshal.ReleaseComObject(bmp); } } return(res); }
public HResult ExtractAndDrawThumbnail(IntPtr hdc, uint iconSize, out WTS_CACHEFLAGS flags, User32.RECT iconBounds, out bool retrieved, bool isHidden, bool isRefresh = false) { IThumbnailCache thumbCache = null; if (this.ComInterface != null) { var IID_IUnknown = new Guid("00000000-0000-0000-C000-000000000046"); var CLSID_LocalThumbnailCache = new Guid("50EF4544-AC9F-4A8E-B21B-8A26180DB13F"); IntPtr cachePointer; Ole32.CoCreateInstance(ref CLSID_LocalThumbnailCache, IntPtr.Zero, Ole32.CLSCTX.INPROC, ref IID_IUnknown, out cachePointer); thumbCache = (IThumbnailCache)Marshal.GetObjectForIUnknown(cachePointer); } var res = HResult.S_OK; ISharedBitmap bmp = null; flags = WTS_CACHEFLAGS.WTS_DEFAULT; var thumbId = default(WTS_THUMBNAILID); try { retrieved = false; res = thumbCache.GetThumbnail(this._Item.ComInterface, iconSize, isRefresh ? (WTS_FLAGS.WTS_FORCEEXTRACTION | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE) : (WTS_FLAGS.WTS_INCACHEONLY | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE), out bmp, flags, thumbId); var hBitmap = IntPtr.Zero; if (bmp != null) { bmp.GetSharedBitmap(out hBitmap); retrieved = true; int width; int height; Gdi32.ConvertPixelByPixel(hBitmap, out width, out height); Gdi32.NativeDraw(hdc, hBitmap, iconBounds.Left + (iconBounds.Right - iconBounds.Left - width) / 2, iconBounds.Top + (iconBounds.Bottom - iconBounds.Top - height) / 2, width, height, isHidden); Gdi32.DeleteObject(hBitmap); } } finally { if (bmp != null) { Marshal.ReleaseComObject(bmp); } } return(res); }
public Boolean RefreshThumb(int iconSize, out WTS_CACHEFLAGS flags) { flags = WTS_CACHEFLAGS.WTS_DEFAULT; return(true); //ISharedBitmap bmp = null; //WTS_CACHEFLAGS cacheFlags = WTS_CACHEFLAGS.WTS_DEFAULT; //WTS_THUMBNAILID thumbId = new WTS_THUMBNAILID(); //Boolean result = false; //try { // if (ThumbnailCache.GetThumbnail(this.shellItemNative, iconSize, WTS_FLAGS.WTS_FORCEEXTRACTION | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE, out bmp, cacheFlags, thumbId) != HResult.WTS_E_FAILEDEXTRACTION) { // result = true; // } //} finally { // if (bmp != null) // Marshal.ReleaseComObject(bmp); //} //flags = cacheFlags; //return result; }
public Boolean RefreshThumb(int iconSize, out WTS_CACHEFLAGS flags) => this._Item.Thumbnail.RefreshThumbnail((uint)iconSize, out flags);
public HResult ExtractAndDrawThumbnail(IntPtr hdc, uint iconSize, out WTS_CACHEFLAGS flags, User32.RECT iconBounds, out bool retrieved, bool isHidden, bool isRefresh = false) { return(this._Item.Thumbnail.ExtractAndDrawThumbnail(hdc, iconSize, out flags, iconBounds, out retrieved, isHidden, isRefresh)); }
public HResult ExtractAndDrawThumbnail(IntPtr hdc, uint iconSize, out WTS_CACHEFLAGS flags, User32.RECT iconBounds, out bool retrieved, bool isHidden, bool isRefresh = false) { return this._Item.Thumbnail.ExtractAndDrawThumbnail(hdc, iconSize, out flags, iconBounds, out retrieved, isHidden, isRefresh); }
public HResult ExtractAndDrawThumbnail(IntPtr hdc, uint iconSize, out WTS_CACHEFLAGS flags, User32.RECT iconBounds, out bool retrieved, bool isHidden, bool isRefresh = false) { HResult res = HResult.S_OK; ISharedBitmap bmp = null; flags = WTS_CACHEFLAGS.WTS_DEFAULT; WTS_THUMBNAILID thumbId = new WTS_THUMBNAILID(); try { retrieved = false; res = ThumbnailCache.GetThumbnail(this._Item.ComInterface, iconSize, isRefresh ? (WTS_FLAGS.WTS_FORCEEXTRACTION | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE) : (WTS_FLAGS.WTS_INCACHEONLY | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE), out bmp, flags, thumbId); IntPtr hBitmap = IntPtr.Zero; if (bmp != null) { bmp.GetSharedBitmap(out hBitmap); retrieved = true; int width; int height; Gdi32.ConvertPixelByPixel(hBitmap, out width, out height); Gdi32.NativeDraw(hdc, hBitmap, iconBounds.Left + (iconBounds.Right - iconBounds.Left - width) / 2, iconBounds.Top + (iconBounds.Bottom - iconBounds.Top - height) / 2, width, height, isHidden); Gdi32.DeleteObject(hBitmap); } } finally { if (bmp != null) Marshal.ReleaseComObject(bmp); } return res; }
public Boolean RefreshThumbnail(uint iconSize, out WTS_CACHEFLAGS flags) { ISharedBitmap bmp = null; WTS_CACHEFLAGS cacheFlags = WTS_CACHEFLAGS.WTS_DEFAULT; WTS_THUMBNAILID thumbId = new WTS_THUMBNAILID(); Boolean result = false; try { if (ThumbnailCache.GetThumbnail(this.shellItemNative, iconSize, WTS_FLAGS.WTS_FORCEEXTRACTION | WTS_FLAGS.WTS_SCALETOREQUESTEDSIZE, out bmp, cacheFlags, thumbId) != HResult.WTS_E_FAILEDEXTRACTION) { result = true; } } finally { if (bmp != null) Marshal.ReleaseComObject(bmp); } flags = cacheFlags; return result; }